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LiRa [457]
3 years ago
8

Evaluate m+n for m = 9 and n=7​

Mathematics
2 answers:
Anastaziya [24]3 years ago
6 0

Step-by-step explanation:

M=9 so m+n becomes 9+n.

N=7 so 9+n becomes 9+7.

9+7=16

____ [38]3 years ago
4 0

Answer:

16

Step-by-step explanation:

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I need help on #37!!
Nataliya [291]

Answer:

A) 12.1 , 12.01

B) infinitely large

Step-by-step explanation:

Give that the function f(x)=x2 describes the area of the square, f(x), in square inches, whose sides each measure x inches. If x is changing. 

Using the formula

(f(a + h) - f(a))/h

as x changes from 6 inches to 6.1 inches

a = 6, h = 0.1

= [f(6.1) - f(6)]/0.1

= (6.1^2 - 6^2)/0.1

= (37.21 - 36)/0.1

= 1.21/0.1

= 12.1

and when x changes from 6 inches to 6.01 inches. 

a = 6, And h = 0.01

Using the same formula

(f(a + h) - f(a))/h

= [f(6.01) - f(6)]/0.01

= (6.01^2 - 6^2)/0.01

= (36.120 - 36)/0.01

=0.1201/0.01

= 12.01

B) the instantaneous rate of change of the area with respect to x at the moment when x = 6 inches is infinitely large since h = 0

5 0
3 years ago
What is the measurement of N?<br> A) 17° <br> B) 18° <br> C) 20° <br> D) 45°
maxonik [38]

Answer:

it is  18

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
2x – 3 = 6 if x=3<br> please help me im desperate
marissa [1.9K]
2x-3=6
2(3)-3=6
multiply the parenthesis
6-3=6
I hope this helped (:
5 0
3 years ago
Read 2 more answers
How many 9 digit combinations with 10 numbers?
PolarNik [594]
<span>There are 1 billion 9 digit numbers (000,000,000 through 999,999,999). There are 45 different combinations of two different numerals (10 x 9 divided by 2). There are 512 (2 to the 9th power) different permutations for any two numbers to be used in a 9 digit number</span>
3 0
3 years ago
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 lower than in the first
Artyom0805 [142]

Answer:

Let x = the charge in 1st city before taxes

Let y = the charge in 2nd city before taxes

 

 

Set up equation before taxes.

 

y = x - 1500        eq1

 

 

Set up equation for total tax paid.

 

0.065x + 0.06y = 378.75         eq2

 

 

Substitute eq1 into eq2.

 

0.065x + 0.06(x - 1500) = 378.75

0.065x + 0.06x - 90 = 378.75

0.125x - 90 = 378.75

0.125x = 468.75

       x = 3750

 

Substitute this value of x into eq1.

 

y = 3750 - 1500

y = 2250

 

 

The hotel charge in city one is $3750 and the hotel charge in city two is $2250

3 0
3 years ago
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